Sparking device.



G. M. H SALOMQNS KY.

SPAHKING DEVICE.

APPLICATION FILED T11R26, 191s.

lLLIK-ER & N.

Patented Jan. 12%,1915.

w W m New "r.

SPABKING BEVIGE.

dpccification of Letters latent.

Jon; is, 1%.5.

application filed February 3.9.13. fierial No. 350,732.

To (ZZZ whom it may concern) Be it known that we, Cnaanns M. linin- KERand NATHAN SALOMONSKY, citizens of the United Statesof America, bothresiding at the city of New York, in the county and State of New York,have invented certain new and; useful Improvements in Spark ng Devices,of which the following is a specification. 7

Our invention relates spark plugs adapted to ignite vaporized gasoleneand other materials, usually fo the purpose of producing that powerwhich results from the explosion of a quant gas, out we do not limit itto a combination including the cylinder of the usual motor, since it iscapable of other uses, though we so designed it that it may he used withsuch a motor with great acceptability.

One feature consists in providing for a tiuble'or single spark gap andanother in so arranging the instrumentalities that the sparking pointsor terminals may be readily cleaned.

Figure 1, is a side view of one form of our device. Fig. 2 is a centralvertical sectional View of said device. Figs. 3, l, 5, are diagrammaticviews of the points in difi'erent situations. Fig. 6 represents amodification. Fig. 7 is a vertical sectional view of aplug in which thebridge piece is fixed and the terminal may be rotated. S is an underface viewof the plug of Fig. 7

1 represents a hollow plug provided with angular faces 2 to accommodatea wrench and a threaded portion 3 adapted to turn into an opening in acylinder or other device to which it is desired to attach the plug. Plug1, has a central bore 4, preferably shouldered at 5. In that bore, welocate an insulator block 6, usually a porcelain cylinder provided withan integral collar 7 adapted to rest on shoulder 5, and he held in placeby a follower 8, threaded into plug 1,.and provided with a milledperiphery 9 beyond the line of plug 1. his follower also secures theasbestos packing 10, in position between its lower edge and the shoulder5. v

The insulator block 6, is bored longitudinally at 11 and 12, and itsupper end is preferably, stopped as shown to provide dil? ferent levelsfor the attachments which are to occupy the bores 11 and. i2, Bore 11 isp eferably occupied by a conductive termi- 1 .114, extending through it,hreaded at the outer end and there provided witha nut 15, to act as abinding post for the one circuit wire. the other end it forms anelectrode or point 16, preferably l. shaped, and shouldered at l? tosupport an asbestos packing ring 18, between the shoulder and a recess19 sunk into the block bore 12, is occupied by a rod 20, conductive ornot at plasure, at its lowencnd we construct .a bridge piece 1%, ofconductive metal, shouldered at 252 and holding a ring of asbestospacking ..3 up against the wall of a second 24, sunk in the block 6,concentrically with bore 12. The second electrode 25, extends downwardfrom the plug 1 or, it may he an independent conductive piece extendingup through the plug to a place convenient for the attachment of theother circuit Wire. Its lower end 26 is also preferahl' shaped with thetoe ro'ectiiw J P l is toward the toe of the other electrode.

At the upper end of rod 52-0, we'mount a. handle 2?, with an enlargedend, which is counter-bored to accommodate a coil spring 28 set within acounteroore and surrounding rod. 20, its stress being arranged to holdthe shoulder of rod. 26 against the packing ring and at the $211119 timeto create suliicieut friction tohold said rod 20 at any angle ofoscillation to which it may be turned. The bridge piece, on this rod 20,is the feature which enables us to accomplish our purpose in a verysimple manner. Measured at one diameter, it is wide enough to reach fromone too piece to the other one. Consequently by turning it so that thatparticular diameter crosses a line drawn from one toe piece to theother, we can. readily brush, rubor clean oil any smut or soot which hascollected on the spark points or poles, and keep them clean and alwaysready for action. To assist in. this action, the pole pieces, terminalsor electrodes, 16 and 26, may be slightly resilient (or the bridge ends)and the bridge, at the given diameter, a little longer than theintervening space from 16 to 26. Measured through another diameter (seeFig. 4'.) the bridge will span thc distance from its pivot to one of thetoe pieces, but not to the other. Consequently, when properly connectedto a source of electrical power, there will be a spark-at the gap fromthe free end of the bridge to thetoe, piece not in contact with it.Measured through a third diameter, (see Fig. 5) the bridge piece Theother I will not reach-from its pivot to either too;

I portions is greater than the other.

' ter.

piece, but the separation is such hat the spark will itself bridge theintervals, thus producing a double spark gap, with all the adxantagesattendant upon-such a product on.

The form We prefer for accomplishing the results noted, is that shown inFigs. '1 and 2, in which the bridge piece, in cross section, is somewhattrapezoidal in. "form, or rather resembling a circle of a diameter asgreat as the separation of the toe pieces one iromthe other, from whichunequal segments have been cut, leaving two preferably straight sideswhich are less distant from the center than the distance from thatcenter to the toe pieces, the sides being joined by curved portions ofthe original circle, one of which With a bridge piece of such form, theshifting to the various positions is very simple mat- 'By turning thehandle to the position of Fig; 3, the bridge will be caused to makecontact with both toe pieces and a slight vibration will effect theircleaning. By turn ing the handle to the position of Fig. *l, the end ofthe bridge with the short curve will separate from the toe piece 1.6while the part 1 With the longer curve will maintain its contact withthe toe piece 26 and a single gap arrangement Wlll be produced. Theitriction maintained by spring 28 Will hold the bridge in oitler of thepositions to which it is turned. Substantially similar results may beattained by the use of the form shown in Fig. 6. The bridge piece ofthat figure, though eferably integral, is constructed as though itconsisted of three bridge pieces,

one above another, arranged in any. order desired, preferably with theshortest piece at the bottom, the longest next above and the one ofintermediate length at the top, the handle being provided with a cam,30.

When the handle is turned to one position, the rod will be brought tosuch a position that the long bridge contacts with the toe pieces, and,as before, its oscillation will clean the points. When the handle isturned 1 another position, the upper bridge will be at the level of thetoe and the single gap arrangement will be instituted, but if the handlebe turned to the position shown in Fig. 6, the short bridge will be.

brought to the level oi the points and the double gap arrangement willresult.

The combination is one of great simplicity and nevertheless of greatCtlPflfiltlQS. The idea of arranging a bridge to secure a double spark.is not limited to the arrangement of Figs. 1-5. In Figs. 7 and 8, weshow another style. in this form, one terminal 16 becomes the movablepart and an independent bridge 31 is seated i the porcelain block Thenwe provide two projections or toe pieces 26, 52G extending from plug 1,26

being, usually loi'igcr than 9.6 and we con- 1,126,,Ue a

struct the rod of terminal 16 so that it may turn in the porcelainblock, and secure a handle directly to said rod. flhe terminal 16* isikewisc provided with two toe pieces so arranged that upon turning therod to one radial. mark, it will contact with too piece 26 but uponturning it to another radial mark it will contact with toe piece ofbridge piece 31. It is thus rendered capable of cleaning those toepieces. Not only so, but when set so that only a slight, gap existsbetween terminal 16 and bridge 51, the gap between bridge 31 and 26*being also sli it there will be a double gap spark from terminal 16 tobridge 31 and from bridge 31. to toe piece 26 the distance from 16 toterminal 26 being then so great that there is no likelihood of any sparkbetween them. When the termimd 16 is turned so that only a slight gapexists between it and toe piece 26*", then there will be a single gapspark between them, the distance from the terminal 16 to the bridge 31being then too great for a spark at that point.

lVhat we claim as our invention and dcsire to secure by Letters Patentis 1. A sparking device composed of a body adapted to be connected witha receptacle for material to be fired, and supporting a bridge 01conducting material and two electrodes; one of said'parts beingoscillatable toward or from another, one electrode and the bridge beinginsulated from the metal of the plug, and both electrodes being providedwith circuit connections, said bridge piece being arranged between theelectrodes and adapted as described to permit a double gap spark to becreated between. it and the electrodes when the parts are in oneposition, but only a single spark when they are in a different relativeposition, all substantially as set forth.

2. A sparking device composed of a body adapted to;be connected. with areceptacle for materiahtc be fired, and supporting a bridge ofconducting material and two electrodes; one of said three supportedparts being oscillatable toward or from another, one electrode and thebridge being insulated :trom the metal of the plug, and both electrodesbeing provided with circuit connections, said oscillatory part providedwith toe pieces, adapted as described to con" tact with the adjacentsparking points of the other two oi saidpthree supported devices duringsome part oi an oscillation, said bridge piece being "arranged betweenthe electrodes and the. oscillating part being adapted as described, topermit a double gap spark to be crea ed between itself and the other twoof said devices when the parts are in one position, but only a singlespark when they are in a diiicrent relative posi tion, all substantiallyas set forth.

3. A sparking device, composed of a body stance? adapted to be connectedwith a receptamc for material to he fired, two electrodes coo; nectedtherewith, but insulated. one from the other, one of them. being alsoinsulated from the metal of the plug and both of them being providedwith circuit connections, sparking points supported by said electrodes,and a movahle bridge piece of conducting inat'erial arranged betweenthem, of such. di-

adapted to be connected. with. a receptacle r material to he fired, and.supporting two el. odes, connected therewith, but insnlated one from theother, one of them being also insulated from the metal of the plug andboth of then]. being provided with circuit connections, sparking pointssupported by said electrodes, and a movable bridge piece of conductingmaterial arranged bemensions, that in one relative position ,it tweenthese, anl supported upon an oscilreaches; from one sparking point to0ther,hut when moved from such oosition it will reach to one point but.not to the othemall"substantially as set forth.

latcry rod, its radial measurements on one dia'nietric line, normally inthe plane of the sparking points, being respectively as great as thedistances from its axis to the respecis 4. A spar ring device composedof a body tive points, and upon another diametric line adapted to beconnected with a receptacle for material to be fired and supporting twoelectrodes connected therewith, but insulated one from the other, one ofthem lacing also in in said plane, being respectively, one as great asthe distance from its axis to one sparking point and the otherless thanthe distance from its axis to one sparking point,

sulated from the metal of the. plug and together With means foroscillating it. upon connections, sparking points snpporteclby saidelectrodes, and a movable bridge piece of conducting material arrangedbetween electrodes connected therewith, but insulated for mate them, ofsuch dimensions, that in one positlon it reaches v ironi one sparkingpoint to the other but when moved from such relative position'to ano herit will reach to one I point but not the other, and in a third posi.tion will reach neither, all su stantially as set forth.

A sparking device, composed of body adapted to be connected with a rectacle for material to he fired, and supporting two electrodes connectedtherewith, insulated one from the other, of them being al o insulatedfrom the nietal'of the plug, and both of them being provided Withcircuitconnections, sparking points supported by said electrodes, a movablebridge piece of conducting material arranged betweenthem, of suchdiniensions that in one position it will reach'tc one point other and inanother relative position. it Will reach to neither point, substantiallyas set forth, 1 I 6. A sparking device, composed of a ho' y adapted tobe connected with a receptacle for material to be fired, and support .70

one from the other, one of them being also .both of them being providedwith circuit its axis, all substantially set forth.

of conducting material, arranged between them and supported upon anoscillatory rod, its radial ineasurnients on onefdisrntric line,normally in plane of the sparking points, being respectively great asthe distances from its to the respective points, and upon anotherdiainetric line in said plane, being respectively, one as great as thedistance from its to one sparlc ing point and the otlier'lcss'than thedistance from its axis one. sparking point, and upon a rd diam-etricline in said ne, e1 ,5 respectively less than the disance fro its axisto the respective spark.-

ing points, together with nieans for oscillating it upon its axis,all'substantia'lly as A sparking device, composed of a body adapted tobe connected with a receptacle rial fired, and supporting two electrodesconnected therewith, but Insuinsulated from the metal of the plug andlated one from the other, one of them being both of them being providedwith circuit connections, sparking po nts supported by said electrodes,and a movable bridge piece of conducting material arranged betweenthem'fand supported upon an oscillatory rod, its radlal measurements onone diametric l ne, normally in the plane of the spaiking points, beingrespectively as great as the 'distancesfrom its axis to the respectivepoints, together w th means tor pscillating it upon its axis, allsubstantially as. set forth. a r w 7. A-sparking device, composed of abody plane, each of said measurements less than the distance from itsaxis to a'sparking point, together with means for oscillating saidbridge piece, all substantially as set forth.

10. A sparking device composed of a metal plug, an insulating blockseated in said plug, a sparking point supported on an arm extending fromsaid plug, a sparking point supported on a rod extending through saidblock, a bridge piece supported on a rod extending through said blockand adapted to oscillate therein, a handle secured to the outer part ofbridge rod, said bridge piece of conducting material in section, in theplane of the sparking points, being as long from its axis in one line asthe spaces between the points, as long, on another line, in saidplane,as the space -from its axis to one adjacent sparking point, but not tothe other and less upon another line in that plane, than the distancefrom its axis to the adjacent sparking points, all substantially as setforth.

11. A sparking device composed of a metal plug, an insulator blocliseated in said plug and stepped at the outer end, a sparking pointsupported on an arm extending from said plug, a sparking point supportedon a rod extending through said .block, a bridge piece of conductingmaterial supported on a rod extending through said block and adapted tooscillate therein, a handle secured to the outer part of said bridgerod, at the line of a step other than that from which the terminal rodextends, said bridge piece in section, in the plane of the sparkingpoints, being as long from its axis in one line as the spaces betweenthe points, and shorter on another line, all substantially as set forth.

In testimony whereof, We have signed our names to this specification inthe presence of two subscribing witnesses, this 22" day of July 1912.

C. M. HILLIKER. NATHAN SALOMONSKY.

Witnesses: v

H. PHLIFFRUN, M. BRAZILL.

